EP3576230B1 - Spring type connector - Google Patents
Spring type connector Download PDFInfo
- Publication number
- EP3576230B1 EP3576230B1 EP17893980.7A EP17893980A EP3576230B1 EP 3576230 B1 EP3576230 B1 EP 3576230B1 EP 17893980 A EP17893980 A EP 17893980A EP 3576230 B1 EP3576230 B1 EP 3576230B1
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- EP
- European Patent Office
- Prior art keywords
- inner housing
- housing
- outer housing
- connector
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/627—Snap or like fastening
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
- H01R13/633—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only
- H01R13/635—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only by mechanical pressure, e.g. spring force
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/64—Means for preventing incorrect coupling
Definitions
- the present invention relates to a spring type connector, and more specifically, a spring type connector including a spring that is configured to forcibly release fitting when a pair of connectors is in a half fitting state and in a fitting releasing state (hereinafter, collectively referred to as "half fitting state").
- the connector includes a lock mechanism in which both connectors of a female connector and a male connector are engaged with each other at a fitting position.
- a spring type connector is known which forcibly releases fitting by a biasing force of a spring in a half fitted state in which both connectors do not reach the fitting position.
- one of the connectors is assembled with an inner housing and an outer housing that surrounds the inner housing so as to be relatively slidable in fitting directions, and the spring is provided between the two housings so as to bias the inner housing in a direction away from the other connector with respect to the outer housing.
- the inner housing is biased in a direction of releasing fitting with respect to the outer housing (hereinafter referred to as "anti-fitting direction") by the biasing force of the spring .
- a retaining mechanism for restricting relative positions of the inner housing and the outer housing in a fitting releasing direction to predetermined assembling positions may be provided such that the inner housing and the outer housing are not separated in the fitting releasing state.
- a female connector illustrated in Fig. 5 of Patent Document 1 includes an inner housing and an outer housing that is assembled to and surround the inner housing so as to be relatively slidable in fitting directions.
- a male connector includes a cylindrical portion that is inserted into a gap between the inner housing and the outer housing.
- the inner housing and the outer housing include a retaining mechanism that suppresses separation between the two housings and holds the two housings in predetermined assembling positions.
- the retaining mechanism includes an elongated hole on an upper surface of the outer housing and a protrusion that is provided on the inner housing so as to be insertable into the elongated hole. The protrusion abuts against a hole wall at one end of the elongated hole in relative sliding directions of the inner housing and the outer housing, so that a position of the protrusion is restricted.
- the retaining mechanism provided in the outer housing and the inner housing in Fig. 5 of Patent Document 1 when the female connector and the male connector is in the half fitting state in which a lock mechanism of the female connector and the male connector is not engaged, the outer housing and the inner housing are biased respectively in the fitting releasing direction by a biasing force of a spring. At this time, the protrusion on an upper surface of the inner housing abuts against the hole wall at the one end of the elongated hole on the upper surface of the outer housing, and the retaining mechanism functions to hold the two housings at predetermined assembling positions.
- Patent Document 1 JP-A-11-224728
- the protrusion of the inner housing abuts against the hole wall of the elongated hole of the outer housing by the biasing force of the spring to retaining the inner housing. Therefore, when the biasing force of the spring is increased in a case of a multipolar connector having a large number of terminals or the like, the protrusion may strongly collide with the hole wall, so that the retaining mechanism may be damaged.
- An object of the present invention is to provide a spring type connector that includes a mechanism configured to push back a housing by utilizing a biasing force of a spring at a time of half fitting, and is capable of preventing or reducing damages to the mechanism.
- the "spring type connector" according to one aspect of the present invention has a following feature (1), and further preferably has a following feature (2).
- One of the connector of the pair of connectors includes:
- the retaining mechanism includes a flange extending from the annular packing and a lock portion of the outer housing abutting on a back side part of the flange in the fitting directions, and is configured to suppress the outer housing from moving toward a front side in the fitting directions with respect to the flange by bringing into contact the flange on the lock portion.
- the flange extending from the watertight annular packing mounted on the outer peripheral surface of the inner housing and a step portion of the outer housing abut against each other so as to suppress separation between the two housings while using the flange as the cushioning member. That is, the flange and the step portion constitute the retaining mechanism.
- the spring type connector having the present feature it is possible to omit the retaining mechanism (mechanism using the pair of the abutting members) according to the one aspect described above. Further, the collision force at a time of abutting is alleviated by the cushioning member (the flange of the annular packing), so that even if the biasing force of the spring is strengthened, damages to the retaining mechanism can be prevented or reduced.
- the spring type connector that includes the mechanism which is configured to push back the housing by utilizing the biasing force of the spring at the time of half fitting is capable of preventing or reducing damages to the mechanism.
- the spring type connector includes a female connector 1 and a male connector 2.
- the female connector 1 includes an inner housing 3 accommodating a plurality of female terminals, and an outer housing 5 that surrounds the inner housing 3 and is assembled to and relatively slidable to the inner housing 3 along fitting directions indicated by an arrow 4.
- the inner housing 3 includes a cylindrical portion 3a that surrounds an accommodation chamber which is configured to accommodate the plurality of female terminals, and an upper plate 3b that is a cover member provided above the cylindrical portion 3a with a space therebetween.
- the cylindrical portion 3a has a substantially rectangular cross section.
- the cylindrical portion 3a is formed so as to be insertable into a cylindrical portion 5a of the outer housing 5.
- the cylindrical portion 5a has a substantially rectangular cross section.
- a gap into which a cylindrical portion 10 of the male connector 2 is inserted is formed between an outer peripheral surface of the cylindrical portion 3a and an inner peripheral surface of the cylindrical portion 5a.
- the cylindrical portion 10 has a substantially rectangular cross section described later.
- the annular packing 6 is mounted on the outer peripheral surface of the cylindrical portion 3a, and serves to waterproof between an inner peripheral surface of the cylindrical portion 10 of the male connector 2 and an outer peripheral surface of the inner housing 3, the cylindrical portion 10 has a substantially rectangular cross section described later.
- the annular packing 6 is positioned between a front holder 7 attached to a tip portion of the outer peripheral surface of the cylindrical portion 3a and a step portion formed in a back of the cylindrical portion 3a.
- two short terminals 8 are inserted into the corresponding accommodation chamber of the inner housing 3 to be mounted.
- the short terminals 8 short-circuit two specific male terminals of the male connector 2 to be fitted into the female connector 1.
- the present invention is not limited to a connector including the short terminal 8.
- the male connector 2 includes the cylindrical portion 10 that includes a accommodation chamber in which a plurality of needle-shaped male terminals 9 are inserted and accommodated, and has a substantially rectangular cross section.
- the male connector 2 of the present embodiment is used by being coupled to a circuit board (not illustrated), for example, and includes a support portion 11 that is fixed to the circuit board with bolts or the like and is provided on both side surfaces of the cylindrical portion 10.
- the male connector 2 is not limited thereto.
- a retaining mechanism that is configured to maintain the inner housing 3 and the outer housing 5 of the female connector 1 in a predetermined assembled state and suppress separation between the inner housing 3 and the outer housing 5, and a lock mechanism that is configured to maintain a fitting state between the female connector 1 and the male connector 2 are described.
- the inner housing 3 and the outer housing 5 are assembled so as to be slidable relatively in the fitting directions indicated by the arrow 4 in Fig. 1 .
- the inner housing 3 and the outer housing 5 are biased in a direction in which the inner housing 3 and the outer housing 5 are separated from each other by a plurality of coiled springs 12. As illustrated in Figs.
- a spring accommodation portion 3c is provided at a rear end portion of a side surface of the inner housing 3
- a spring accommodation portion 5d is provided at a rear end portion of a side surface of the outer housing 5 in correspondence therewith.
- One end of the spring 12 is slidably accommodated in the spring accommodation portion 3c, and another end of the spring 12 is accommodated in the spring accommodation portion 5d.
- the spring 12 biases the inner housing 3 and the outer housing 5 in directions in which the inner housing 3 and the outer housing 5 are separated from each other (anti-fitting directions) along the fitting directions indicated by the arrow 4 in Fig. 1 .
- the lock mechanism includes a lock claw 3j of a lock arm 3e formed on an upper plate 3b of the inner housing 3 of the female connector 1, and a protrusion 10a formed to protrude from an upper surface of the cylindrical portion 10 of the male connector 2.
- a protrusion 10b provided on a lower surface of the cylindrical portion 10 of the male connector 2 abuts against a tip portion of the outer housing 5, so that a position of the male connector 2 with respect to the outer housing 5 is determined. Further, if the inner housing 3 is pushed in as illustrated in Fig.
- the lock claw 3j at a tip end of the lock arm 3e abuts against the protrusion 10a of the male connector 2, so that the lock arm 3e elastically deforms and the lock claw 3j rides on the protrusion 10a. If the inner housing 3 is further pushed in, the lock claw 3j rides over the protrusion 10a and is locked to the protrusion 10a. In this manner, the lock mechanism is engaged, a fitting of the female connector 1 and the male connector 2 is completed, and electrical connection between the female terminal 14 and the male terminal 9 in correspondence with the female connector 1 and the male connector 2 is maintained.
- the spring 12 biases the female connector 1 and the male connector 2 in the anti-fitting directions in which the housings of the male connector 1 and the male connector 2 are separated, so that the retaining mechanism operates.
- the retaining mechanism that is configured to maintain the assembled state of the female connector 1 and suppress separation between the housings includes elongated holes 5b formed on an upper surface of the outer housing 5 and protrusions 3d formed on the upper plate 3b of the inner housing 3 so as to be insertable into the elongated holes 5b respectively.
- the elongated hole 5b is formed so as to have a long axis in relative sliding directions of the inner housing 3 and the outer housing 5.
- the protrusions 3d slidably inserted into the elongated holes 5b abuts against hole walls 5c at one end in sliding directions to regulate a position of the inner housing 3 with respect to the outer housing 5.
- a pair of abutting members of the retaining mechanism includes the hole wall 5c and the protrusion 3d.
- two sets of the retaining mechanisms according to the present embodiment are provided on the upper plate 3b of the inner housing 3 and an upper cylindrical surface of the outer housing 5 corresponding to the upper plate 3b of the inner housing 3, and one set of the retaining mechanism is provided on a lower cylindrical surface of the cylindrical portion 3a of the inner housing 3 and a lower cylindrical surface of the outer housing 5 corresponding to the lower cylindrical surface of the cylindrical portion 3a of the inner housing 3.
- the present invention is not limited to the present embodiment.
- reinforcing ribs 3f are provided on a lower surface of the upper plate 3b on the cylindrical portion 3a side. Side edges on both sides of the upper plate 3b are slidably supported by ribs 5h formed on an inner surface of the outer housing 5.
- Figs. 4(a) and 4(b) are cross-sectional views of the inner housing 3 and the outer housing 5 in the predetermined assembled state.
- Fig. 4(a) is a cross-sectional view taken along an arrow IVa in Fig. 2(a) at a fitting axis position
- Fig. 4(b) is a cross-sectional view taken along an arrow IVb in the elongated hole 5b in the front of Fig. 2(a) at a position of the long axis.
- Fig. 5 illustrates a configuration of the annular packing 6.
- the annular packing 6 includes a rectangular packing main body portion 6a mounted on the outer peripheral surface of the inner housing 3, and a band-shaped cushioning member 6b that is formed to extend from an end surface of the packing main body portion 6a in a depth direction. That is, the cushioning member 6b is preferably formed of the same material (for example, silicon rubber) integrally with the annular packing 6.
- the annular packing 6 is mounted on the outer peripheral surface of the cylindrical portion 3a of the inner housing 3.
- a partition wall 3g is provided on the end surface of the packing main body portion 6a in the depth direction from an upper surface of the outer peripheral surface of the cylindrical portion 3a toward a lower surface of the upper plate 3b of the inner housing 3.
- a cylindrical wall including a partition wall is formed from a lower surface of the outer peripheral surface of the cylindrical portion 3a toward an inner surface of the cylindrical portion 5a of the outer housing 5.
- the packing body portion 6a is positioned and fixed between an end face of the front holder 7 mounted from a tip portion of the inner housing 3, and the partition wall 3g of the inner housing 3 and the cylindrical wall including the partition wall.
- the band-shaped cushioning member 6b extends from a portion where the packing main body 6a abuts against the partition wall 3g or the cylindrical wall including the partition wall, and is inserted into a gap where the hole wall 5c of the elongated hole 5b constituting the retaining mechanism and the protrusion 3d face each other.
- the cushioning member 6b may be provided separately from the packing main body portion 6a, and may be inserted into the gap where the hole wall 5c and the protrusion 3d face each other.
- a number of components can be reduced to facilitate work management at a time of assembly by integrally forming the cushioning member 6b and the packing main body portion 6a.
- the retaining mechanism is formed such that the protrusion 3d and the hole wall 5c provided so as to face both housings of the inner housing 3 and the outer housing 5 abut against each other.
- the cushioning member 6b is inserted or provided between the protrusion 3d and the hole wall 5c, so that when the female connector 1 and the male connector 2 are in a half fitting state or the like, even if the inner housing 3 and the outer housing 5 are separated by the spring 12 in the anti-fitting directions in which a fitting of the inner housing 3 and the outer housing 5 are forcibly released, the protrusion 3d and the hole wall 5c abut against each other so that the inner housing 3 and the outer housing 5 are held at predetermined assembling positions.
- a spring type connector according to a second embodiment of the present invention is described with reference to Figs. 6 and 7 .
- the present embodiment is different from the first embodiment in configurations of the retaining mechanism, and other configurations are the same as those of the first embodiment. Therefore, only the differences are described, and description of the other configurations is omitted.
- Fig. 6 illustrates a configuration of the female connector 1 according to the present embodiment
- Fig. 6(a) is a cross-sectional view taken along a central axis of the upper spring 12
- Fig. 6(b) is a front view of the female connector 1 as viewed from a male connector 2 side.
- the annular packing 13 according to the present embodiment includes an annular packing main body 13a mounted on the cylindrical portion 3a of the inner housing 3, and a flange 13b integrally formed at an end portion on a back side in a drawing of the packing main body 13a.
- a notch 13c is formed in the flange 13b.
- the notch 13c is located at a center of an upper surface of the cylindrical portion 3a of the inner housing 3.
- the notch 13c is not necessarily required.
- the annular packing 13 is mounted on a outer periphery of the cylindrical portion 3a of the inner housing 3 with the flange 13b on the back side.
- a step portion 3h having a stepped surface is formed on the outer periphery of the cylindrical portion 3a.
- the step portion 3h is formed at the predetermined assembling positions of the inner housing 3 and the outer housing 5 in accordance with a position of a back surface 5f of a spring receiver 5e forming the spring accommodation portion 5d of the outer housing 5.
- reference numeral 3k denotes a guide rod of the spring 12.
- a state illustrated in Fig. 6(a) is predetermined assembling positions of the inner housing 3 and the outer housing 5, and is positions where the female connector 1 and the male connector 2 are forcibly returned by a biasing force of the spring 12 when the female connector 1 and the male connector 2 are in the half fitting state. That is, the retaining mechanism is constituted by the flange 13b of the annular packing 13 mounted on the inner housing 3 and the back surface 5f of the spring receiver 5e (lock portion) of the outer housing 5.
- the inner housing 3 protruding downward in Fig. 6(a) from the outer housing 5 is pushed back by the spring 12 to return to an illustrated position.
- the flange 13b of the annular packing 13 collides against the back surface 5f of the spring receiver 5e.
- the impact force thereof is sufficiently alleviated by the flange 13b, so that even if the biasing force of the spring 12 is strong, it is possible to suppress damages to the retaining mechanism.
- the retaining mechanism according to the first embodiment can be omitted.
- the watertight annular packing 13 inserted between the outer peripheral surface of the inner housing 3 and the inner peripheral surface of the cylindrical portion 10 of the male connector 2 is mounted.
- the outer housing 5 includes the back surface 5f of a spring reception portion located at a back of the gap into which the cylindrical portion 10 of the male connector 2 is inserted.
- the gap is located at an end portion on a back side of the annular packing 13.
- the flange 13b which is formed integrally with the annular packing 13 and is formed so as to be able to abut against the back surface 5f of the spring receiver 5e of the outer housing 5, is provided so as to constitute the retaining mechanism in which the flange 13b serves as the cushioning material.
- the spring type connector that includes the mechanism which is configured to push back the housing by utilizing the biasing force of the spring at the time of half fitting is capable of preventing or reducing damages to the mechanism.
- the present invention having this effect is useful for a spring type connector.
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- Connector Housings Or Holding Contact Members (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Description
- The present invention relates to a spring type connector, and more specifically, a spring type connector including a spring that is configured to forcibly release fitting when a pair of connectors is in a half fitting state and in a fitting releasing state (hereinafter, collectively referred to as "half fitting state").
- Generally, the connector includes a lock mechanism in which both connectors of a female connector and a male connector are engaged with each other at a fitting position. Further, a spring type connector is known which forcibly releases fitting by a biasing force of a spring in a half fitted state in which both connectors do not reach the fitting position. For example, one of the connectors is assembled with an inner housing and an outer housing that surrounds the inner housing so as to be relatively slidable in fitting directions, and the spring is provided between the two housings so as to bias the inner housing in a direction away from the other connector with respect to the outer housing. Then, the inner housing is biased in a direction of releasing fitting with respect to the outer housing (hereinafter referred to as "anti-fitting direction") by the biasing force of the spring . In addition, a retaining mechanism for restricting relative positions of the inner housing and the outer housing in a fitting releasing direction to predetermined assembling positions may be provided such that the inner housing and the outer housing are not separated in the fitting releasing state.
- For example, a female connector illustrated in
Fig. 5 ofPatent Document 1 includes an inner housing and an outer housing that is assembled to and surround the inner housing so as to be relatively slidable in fitting directions. A male connector includes a cylindrical portion that is inserted into a gap between the inner housing and the outer housing. The inner housing and the outer housing include a retaining mechanism that suppresses separation between the two housings and holds the two housings in predetermined assembling positions. The retaining mechanism includes an elongated hole on an upper surface of the outer housing and a protrusion that is provided on the inner housing so as to be insertable into the elongated hole. The protrusion abuts against a hole wall at one end of the elongated hole in relative sliding directions of the inner housing and the outer housing, so that a position of the protrusion is restricted. - According to the retaining mechanism provided in the outer housing and the inner housing in
Fig. 5 ofPatent Document 1, when the female connector and the male connector is in the half fitting state in which a lock mechanism of the female connector and the male connector is not engaged, the outer housing and the inner housing are biased respectively in the fitting releasing direction by a biasing force of a spring. At this time, the protrusion on an upper surface of the inner housing abuts against the hole wall at the one end of the elongated hole on the upper surface of the outer housing, and the retaining mechanism functions to hold the two housings at predetermined assembling positions. - Patent Document 1:
JP-A-11-224728 - In the spring type connector described in
Fig. 5 ofPatent Document 1, the protrusion of the inner housing abuts against the hole wall of the elongated hole of the outer housing by the biasing force of the spring to retaining the inner housing. Therefore, when the biasing force of the spring is increased in a case of a multipolar connector having a large number of terminals or the like, the protrusion may strongly collide with the hole wall, so that the retaining mechanism may be damaged. - An object of the present invention is to provide a spring type connector that includes a mechanism configured to push back a housing by utilizing a biasing force of a spring at a time of half fitting, and is capable of preventing or reducing damages to the mechanism.
- The "spring type connector" according to one aspect of the present invention has a following feature (1), and further preferably has a following feature (2).
- (1) A spring type connector includes a pair of connectors having a lock mechanism that are engaged with each other at a fitting position.
One connector of the pair of connectors includes:- an inner housing;
- an outer housing that surrounds the inner housing and is assembled to and slidable to the inner housing relatively in fitting directions;
- a gap defined between the inner housing and the outer housing and into which the other connector of the pair of connectors is capable of being inserted;
- a retaining mechanism configured to suppress separation between the inner housing and the outer housing; and
- a spring configured to bias the inner housing and the outer housing in directions in which the inner housing and the outer housing are separated from each other.
- a pair of abutting members provided on the inner housing and the outer housing so as to face each other in the fitting directions; and
- a cushioning member provided between the pair of the abutting members.
According to the spring type connector having the feature (1), the retaining mechanism is constituted by the pair of the abutting members. When the pair of the connectors is in a half fitting state in which the pair of the connectors is not engaged by the lock mechanism, the two housings are biased by the spring in directions in which the inner housing and the outer housing are separated from each other (anti-fitting directions). As a result, the pair of the abutting members abuts against each other, and separation between the two housings is prevented or reduced. Further, even if a biasing force of the spring is strengthened, an impact force acting between the pair of the abutting members is alleviated by the cushioning member, so that damages to the retaining mechanism can be prevented or reduced. - (2) The spring type connector according to (1) further includes:
a watertight annular packing that is mounted on an outer peripheral surface of the inner housing and is provided in the gap.
The cushioning member is a band-shaped member that extends from the annular packing and is provided between the pair of the abutting members.
According to the spring type connector having the feature (2), the watertight annular packing provided in the gap (more specifically, provided between the outer peripheral surface of the inner housing and the inner peripheral surface of the other connector) is mounted on the outer peripheral surface of the inner housing. Further, the band-shaped member that extends from the annular packing and is provided between the pair of the abutting members is used as the cushioning member. That is, the cushioning member is formed integrally with the annular packing.
Further, the "spring type connector" according to another aspect of the present invention is configured to have a following feature (3). - (3) A spring type connector includes a pair of connectors having a lock mechanism that are engaged with each other at a fitting position.
- One of the connector of the pair of connectors includes:
- an inner housing;
- an outer housing that surrounds the inner housing and is assembled to and slidable to the inner housing relatively in fitting directions;
- a gap defined between the inner housing and the outer housing and into which the other connector of the pair of connectors is capable of being inserted;
- a retaining mechanism configured to suppress separation between the inner housing and the outer housing;
- a spring configured to bias the inner housing and the outer housing in directions in which the inner housing and the outer housing are separated from each other; and
- a watertight annular packing that is mounted on an outer peripheral surface of the inner housing and is provided in the gap.
- The retaining mechanism includes a flange extending from the annular packing and a lock portion of the outer housing abutting on a back side part of the flange in the fitting directions, and is configured to suppress the outer housing from moving toward a front side in the fitting directions with respect to the flange by bringing into contact the flange on the lock portion.
- According to the spring type connector having the feature (3), the flange extending from the watertight annular packing mounted on the outer peripheral surface of the inner housing and a step portion of the outer housing abut against each other so as to suppress separation between the two housings while using the flange as the cushioning member. That is, the flange and the step portion constitute the retaining mechanism. According to the spring type connector having the present feature, it is possible to omit the retaining mechanism (mechanism using the pair of the abutting members) according to the one aspect described above. Further, the collision force at a time of abutting is alleviated by the cushioning member (the flange of the annular packing), so that even if the biasing force of the spring is strengthened, damages to the retaining mechanism can be prevented or reduced.
- According to the present invention, the spring type connector that includes the mechanism which is configured to push back the housing by utilizing the biasing force of the spring at the time of half fitting is capable of preventing or reducing damages to the mechanism.
-
- [
Fig. 1] Fig. 1 is an exploded perspective view of a spring type connector according to a first embodiment of the present invention. - [
Fig. 2] Fig. 2 is a view illustrating a female connector according to the first embodiment,Fig. 2(a) is a perspective view of the female connector, andFig. 2(b) is a front view of the female connector as viewed from a male connector side. - [
Fig. 3] Fig. 3 is a view illustrating an operation at a time of fitting the female connector and the male connector according to the first embodiment. - [
Fig. 4] Fig. 4 is a view illustrating a cushioning member provided in a retaining mechanism of the female connector according to the first embodiment. - [
Fig. 5] Fig. 5 is a configuration view of an annular packing that includes the cushioning member provided in the retaining mechanism of the female connector according to the first embodiment. - [
Fig. 6] Fig. 6 is a view illustrating a main portion of the female connector according to a second embodiment of the present invention,Fig. 6(a) is a cross-sectional view of the main portion of the female connector, andFig. 6(b) is a front view of the main portion of the female connector as viewed from a male connector side. - [
Fig. 7] Fig. 7 is a configuration view of an annular packing constituting a retaining mechanism of the female connector according to the second embodiment,Fig. 7(a) is a front view of the annular packing, andFig. 7(b) is a side view of the annular packing. - Hereinafter, the present invention is described based on embodiments.
- A spring type connector according to a first embodiment of the present invention is described with reference to
Figs. 1 to 5 . As illustrated in an exploded view ofFig. 1 , the spring type connector includes afemale connector 1 and amale connector 2. Thefemale connector 1 includes aninner housing 3 accommodating a plurality of female terminals, and anouter housing 5 that surrounds theinner housing 3 and is assembled to and relatively slidable to theinner housing 3 along fitting directions indicated by an arrow 4. Theinner housing 3 includes acylindrical portion 3a that surrounds an accommodation chamber which is configured to accommodate the plurality of female terminals, and anupper plate 3b that is a cover member provided above thecylindrical portion 3a with a space therebetween. Thecylindrical portion 3a has a substantially rectangular cross section. Thecylindrical portion 3a is formed so as to be insertable into acylindrical portion 5a of theouter housing 5. Thecylindrical portion 5a has a substantially rectangular cross section. A gap into which acylindrical portion 10 of themale connector 2 is inserted is formed between an outer peripheral surface of thecylindrical portion 3a and an inner peripheral surface of thecylindrical portion 5a. Thecylindrical portion 10 has a substantially rectangular cross section described later. - The
annular packing 6 is mounted on the outer peripheral surface of thecylindrical portion 3a, and serves to waterproof between an inner peripheral surface of thecylindrical portion 10 of themale connector 2 and an outer peripheral surface of theinner housing 3, thecylindrical portion 10 has a substantially rectangular cross section described later. Theannular packing 6 is positioned between afront holder 7 attached to a tip portion of the outer peripheral surface of thecylindrical portion 3a and a step portion formed in a back of thecylindrical portion 3a. In the present embodiment, twoshort terminals 8 are inserted into the corresponding accommodation chamber of theinner housing 3 to be mounted. Theshort terminals 8 short-circuit two specific male terminals of themale connector 2 to be fitted into thefemale connector 1. However, the present invention is not limited to a connector including theshort terminal 8. - Meanwhile, the
male connector 2 includes thecylindrical portion 10 that includes a accommodation chamber in which a plurality of needle-shapedmale terminals 9 are inserted and accommodated, and has a substantially rectangular cross section. Themale connector 2 of the present embodiment is used by being coupled to a circuit board (not illustrated), for example, and includes asupport portion 11 that is fixed to the circuit board with bolts or the like and is provided on both side surfaces of thecylindrical portion 10. However, themale connector 2 is not limited thereto. - Here, a retaining mechanism that is configured to maintain the
inner housing 3 and theouter housing 5 of thefemale connector 1 in a predetermined assembled state and suppress separation between theinner housing 3 and theouter housing 5, and a lock mechanism that is configured to maintain a fitting state between thefemale connector 1 and themale connector 2 are described. First, theinner housing 3 and theouter housing 5 are assembled so as to be slidable relatively in the fitting directions indicated by the arrow 4 inFig. 1 . Theinner housing 3 and theouter housing 5 are biased in a direction in which theinner housing 3 and theouter housing 5 are separated from each other by a plurality of coiled springs 12. As illustrated inFigs. 1 and2(a) , aspring accommodation portion 3c is provided at a rear end portion of a side surface of theinner housing 3, and aspring accommodation portion 5d is provided at a rear end portion of a side surface of theouter housing 5 in correspondence therewith. One end of thespring 12 is slidably accommodated in thespring accommodation portion 3c, and another end of thespring 12 is accommodated in thespring accommodation portion 5d. Thespring 12 biases theinner housing 3 and theouter housing 5 in directions in which theinner housing 3 and theouter housing 5 are separated from each other (anti-fitting directions) along the fitting directions indicated by the arrow 4 inFig. 1 . - Here, the lock mechanism in the fitting state of the
female connector 1 and themale connector 2 is described. The lock mechanism includes alock claw 3j of alock arm 3e formed on anupper plate 3b of theinner housing 3 of thefemale connector 1, and aprotrusion 10a formed to protrude from an upper surface of thecylindrical portion 10 of themale connector 2. As illustrated inFig. 3(a) , when themale connector 2 is pushed into thefemale connector 1, aprotrusion 10b provided on a lower surface of thecylindrical portion 10 of themale connector 2 abuts against a tip portion of theouter housing 5, so that a position of themale connector 2 with respect to theouter housing 5 is determined. Further, if theinner housing 3 is pushed in as illustrated inFig. 3(b) , thelock claw 3j at a tip end of thelock arm 3e abuts against theprotrusion 10a of themale connector 2, so that thelock arm 3e elastically deforms and thelock claw 3j rides on theprotrusion 10a. If theinner housing 3 is further pushed in, thelock claw 3j rides over theprotrusion 10a and is locked to theprotrusion 10a. In this manner, the lock mechanism is engaged, a fitting of thefemale connector 1 and themale connector 2 is completed, and electrical connection between thefemale terminal 14 and themale terminal 9 in correspondence with thefemale connector 1 and themale connector 2 is maintained. When thefemale connector 1 and themale connector 2 is in a half fitting state in which the lock mechanism of the female connector and the male connector is not engaged, thespring 12 biases thefemale connector 1 and themale connector 2 in the anti-fitting directions in which the housings of themale connector 1 and themale connector 2 are separated, so that the retaining mechanism operates. - Next, the retaining mechanism related to features of the present embodiment is described. The retaining mechanism that is configured to maintain the assembled state of the
female connector 1 and suppress separation between the housings includeselongated holes 5b formed on an upper surface of theouter housing 5 andprotrusions 3d formed on theupper plate 3b of theinner housing 3 so as to be insertable into theelongated holes 5b respectively. Theelongated hole 5b is formed so as to have a long axis in relative sliding directions of theinner housing 3 and theouter housing 5. Theprotrusions 3d slidably inserted into theelongated holes 5b abuts againsthole walls 5c at one end in sliding directions to regulate a position of theinner housing 3 with respect to theouter housing 5. That is, a pair of abutting members of the retaining mechanism includes thehole wall 5c and theprotrusion 3d. As illustrated inFig. 2(b) , two sets of the retaining mechanisms according to the present embodiment are provided on theupper plate 3b of theinner housing 3 and an upper cylindrical surface of theouter housing 5 corresponding to theupper plate 3b of theinner housing 3, and one set of the retaining mechanism is provided on a lower cylindrical surface of thecylindrical portion 3a of theinner housing 3 and a lower cylindrical surface of theouter housing 5 corresponding to the lower cylindrical surface of thecylindrical portion 3a of theinner housing 3. However, the present invention is not limited to the present embodiment. - As illustrated in
Fig. 2(b) , reinforcingribs 3f are provided on a lower surface of theupper plate 3b on thecylindrical portion 3a side. Side edges on both sides of theupper plate 3b are slidably supported byribs 5h formed on an inner surface of theouter housing 5. - Referring to
Figs. 4 and5 , a cushioning member of the retaining mechanism according to features of the present embodiment is described.Figs. 4(a) and 4(b) are cross-sectional views of theinner housing 3 and theouter housing 5 in the predetermined assembled state.Fig. 4(a) is a cross-sectional view taken along an arrow IVa inFig. 2(a) at a fitting axis position, andFig. 4(b) is a cross-sectional view taken along an arrow IVb in theelongated hole 5b in the front ofFig. 2(a) at a position of the long axis.Fig. 5 illustrates a configuration of theannular packing 6. Theannular packing 6 includes a rectangular packingmain body portion 6a mounted on the outer peripheral surface of theinner housing 3, and a band-shapedcushioning member 6b that is formed to extend from an end surface of the packingmain body portion 6a in a depth direction. That is, the cushioningmember 6b is preferably formed of the same material (for example, silicon rubber) integrally with theannular packing 6. - As illustrated in
Fig. 4 , theannular packing 6 is mounted on the outer peripheral surface of thecylindrical portion 3a of theinner housing 3. Apartition wall 3g is provided on the end surface of the packingmain body portion 6a in the depth direction from an upper surface of the outer peripheral surface of thecylindrical portion 3a toward a lower surface of theupper plate 3b of theinner housing 3. A cylindrical wall including a partition wall is formed from a lower surface of the outer peripheral surface of thecylindrical portion 3a toward an inner surface of thecylindrical portion 5a of theouter housing 5. The packingbody portion 6a is positioned and fixed between an end face of thefront holder 7 mounted from a tip portion of theinner housing 3, and thepartition wall 3g of theinner housing 3 and the cylindrical wall including the partition wall. The band-shapedcushioning member 6b extends from a portion where the packingmain body 6a abuts against thepartition wall 3g or the cylindrical wall including the partition wall, and is inserted into a gap where thehole wall 5c of theelongated hole 5b constituting the retaining mechanism and theprotrusion 3d face each other. The cushioningmember 6b may be provided separately from the packingmain body portion 6a, and may be inserted into the gap where thehole wall 5c and theprotrusion 3d face each other. However, a number of components can be reduced to facilitate work management at a time of assembly by integrally forming the cushioningmember 6b and the packingmain body portion 6a. - With this configuration, according to the present embodiment, the retaining mechanism is formed such that the
protrusion 3d and thehole wall 5c provided so as to face both housings of theinner housing 3 and theouter housing 5 abut against each other. The cushioningmember 6b is inserted or provided between theprotrusion 3d and thehole wall 5c, so that when thefemale connector 1 and themale connector 2 are in a half fitting state or the like, even if theinner housing 3 and theouter housing 5 are separated by thespring 12 in the anti-fitting directions in which a fitting of theinner housing 3 and theouter housing 5 are forcibly released, theprotrusion 3d and thehole wall 5c abut against each other so that theinner housing 3 and theouter housing 5 are held at predetermined assembling positions. Further, when thefemale connector 1 and themale connector 2 have a large number of terminals, a biasing force of the spring is strengthened and the impact force acting between the abutting members of theprotrusion 3d and thehole wall 5c is alleviated by the cushioningmember 6b, so that damages to theprotrusion 3d can be prevented or reduced. - A spring type connector according to a second embodiment of the present invention is described with reference to
Figs. 6 and7 . The present embodiment is different from the first embodiment in configurations of the retaining mechanism, and other configurations are the same as those of the first embodiment. Therefore, only the differences are described, and description of the other configurations is omitted. -
Fig. 6 illustrates a configuration of thefemale connector 1 according to the present embodiment,Fig. 6(a) is a cross-sectional view taken along a central axis of theupper spring 12, andFig. 6(b) is a front view of thefemale connector 1 as viewed from amale connector 2 side. As illustrated inFig. 7 , theannular packing 13 according to the present embodiment includes an annular packingmain body 13a mounted on thecylindrical portion 3a of theinner housing 3, and aflange 13b integrally formed at an end portion on a back side in a drawing of the packingmain body 13a. Anotch 13c is formed in theflange 13b. Thenotch 13c is located at a center of an upper surface of thecylindrical portion 3a of theinner housing 3. However, thenotch 13c is not necessarily required. - As illustrated in
Fig. 6(a) , theannular packing 13 is mounted on a outer periphery of thecylindrical portion 3a of theinner housing 3 with theflange 13b on the back side. Astep portion 3h having a stepped surface is formed on the outer periphery of thecylindrical portion 3a. Thestep portion 3h is formed at the predetermined assembling positions of theinner housing 3 and theouter housing 5 in accordance with a position of aback surface 5f of aspring receiver 5e forming thespring accommodation portion 5d of theouter housing 5. InFig. 6(a) ,reference numeral 3k denotes a guide rod of thespring 12. Therefore, when theannular packing 13 is mounted on the outer periphery of thecylindrical portion 3a of theinner housing 3 with theflange 13b on the back side, a back side surface of theflange 13b is mounted so as to abut against both thestep portion 3h and theback surface 5f. A state illustrated inFig. 6(a) is predetermined assembling positions of theinner housing 3 and theouter housing 5, and is positions where thefemale connector 1 and themale connector 2 are forcibly returned by a biasing force of thespring 12 when thefemale connector 1 and themale connector 2 are in the half fitting state. That is, the retaining mechanism is constituted by theflange 13b of theannular packing 13 mounted on theinner housing 3 and theback surface 5f of thespring receiver 5e (lock portion) of theouter housing 5. - Therefore, when the
female connector 1 and themale connector 2 are in the half fitting state, theinner housing 3 protruding downward inFig. 6(a) from theouter housing 5 is pushed back by thespring 12 to return to an illustrated position. At this time, theflange 13b of theannular packing 13 collides against theback surface 5f of thespring receiver 5e. However, the impact force thereof is sufficiently alleviated by theflange 13b, so that even if the biasing force of thespring 12 is strong, it is possible to suppress damages to the retaining mechanism. In a case of the present embodiment, the retaining mechanism according to the first embodiment can be omitted. - As described above, in the present embodiment, the watertight annular packing 13 inserted between the outer peripheral surface of the
inner housing 3 and the inner peripheral surface of thecylindrical portion 10 of themale connector 2 is mounted. Theouter housing 5 includes theback surface 5f of a spring reception portion located at a back of the gap into which thecylindrical portion 10 of themale connector 2 is inserted. The gap is located at an end portion on a back side of theannular packing 13. Theflange 13b, which is formed integrally with theannular packing 13 and is formed so as to be able to abut against theback surface 5f of thespring receiver 5e of theouter housing 5, is provided so as to constitute the retaining mechanism in which theflange 13b serves as the cushioning material. - According to a spring-equipped connector according to the present invention, the spring type connector that includes the mechanism which is configured to push back the housing by utilizing the biasing force of the spring at the time of half fitting is capable of preventing or reducing damages to the mechanism. The present invention having this effect is useful for a spring type connector.
-
- 1
- female connector
- 2
- male connector
- 3
- inner housing
- 3d
- protrusion
- 3e
- lock arm
- 3j
- lock claw
- 5
- outer housing
- 5b
- elongated hole
- 5c
- hole wall
- 5e
- spring receiver (lock portion)
- 6
- annular packing
- 7
- front holder
- 10
- cylindrical portion
- 10a
- protrusion
- 10b
- protrusion
Claims (3)
- A spring type connector comprising:a pair of connectors having a lock mechanism that are engaged witheach other at a fitting position, wherein one connector (1) of the pair of connectors includes: an inner housing (3);an outer housing (5) that surrounds the inner housing (3) and is assembled to and slidable to the inner housing (3) relatively in fitting directions;a gap defined between the inner housing (3) and the outer housing (5) and into which the other connector (2) of the pair of connectors is capable of being inserted; a retaining mechanism (3d, 5c) configured to suppress separation between the inner housing (3) and the outer housing (5); a spring (12) configured to bias the inner housing (3) and the outer housing (5) in directions in which the inner housing and the outer housing are separated from each other andwherein the retaining mechanism (3d, 5c) includes:a pair of abutting members provided on the inner housing (3) and the outer housing (5) so as to face each other in the fitting directions; andcharacterized in that the retaining mechanism further includes a cushioning member (6b) provided between the pair of the abutting members
- The spring type connector according to claim 1, further comprising:
a watertight annular packing (6) that is mounted on an outer peripheral surface of the inner housing (3) and is provided in the gap, wherein the cushioning member (6b) is a band-shaped member that extends from the annular packing and is provided between the pair of the abutting members. - A spring type connector comprising a pair of connectors (1, 2) having a lock mechanism that are engaged with each other at a fitting position, wherein one of the connector (1) of the pair of connectors includes: an inner housing (3); an outer housing (5) that surrounds the inner housing (3) and is assembled to and slidable to the inner housing (3) relatively in fitting directions; a gap defined between the inner housing (3) and the outer housing (5) and into which the other connector (2) of the pair of connectors is capable of being inserted; a retaining mechanism (3d, 5c) configured to suppress separation between the inner housing (3) and the outer housing (5); a spring (12) configured to bias the inner housing (3) and the outer housing (5) in directions in which the inner housing and the outer housing are separated from each other, and a watertight annular packing (6) that is mounted on an outer peripheral surface of the inner housing (3) and is provided in the gap, characterized in that the retaining mechanism includes a flange (13b) extending from the annular packing (6) and a lock portion (5e) of the outer housing (5) abutting on a back side part of the flange in the fitting directions, and is configured to suppress the outer housing (5) from moving toward a front side in the fitting directions with respect to the flange by abutting between the flange and the lock portion (5e).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017010296A JP6649292B2 (en) | 2017-01-24 | 2017-01-24 | Spring type connector |
PCT/JP2017/043212 WO2018139051A1 (en) | 2017-01-24 | 2017-11-30 | Spring type connector |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3576230A1 EP3576230A1 (en) | 2019-12-04 |
EP3576230A4 EP3576230A4 (en) | 2020-01-08 |
EP3576230B1 true EP3576230B1 (en) | 2020-11-18 |
Family
ID=62979241
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17893980.7A Active EP3576230B1 (en) | 2017-01-24 | 2017-11-30 | Spring type connector |
Country Status (6)
Country | Link |
---|---|
US (1) | US10784619B2 (en) |
EP (1) | EP3576230B1 (en) |
JP (1) | JP6649292B2 (en) |
CN (1) | CN110088991B (en) |
BR (1) | BR112019012983A2 (en) |
WO (1) | WO2018139051A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI702761B (en) * | 2019-05-24 | 2020-08-21 | 香港商安費諾(東亞)有限公司 | Plug connector and its components with movable unlocking structure |
KR102234243B1 (en) * | 2019-08-19 | 2021-04-02 | 앱티브 테크놀러지스 리미티드 | Connector and connector assembly comprising the same |
JP7182092B2 (en) * | 2019-11-12 | 2022-12-02 | 矢崎総業株式会社 | connector structure |
JP2022014467A (en) * | 2020-07-07 | 2022-01-20 | 矢崎総業株式会社 | Connector and fitting connector |
JP1703927S (en) * | 2021-06-23 | 2022-01-04 |
Family Cites Families (21)
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US5082455A (en) * | 1991-01-18 | 1992-01-21 | Wei Mu Kang | Lock assembly of a din type connector |
JP3067468B2 (en) * | 1993-04-27 | 2000-07-17 | 住友電装株式会社 | connector |
JPH07192806A (en) * | 1993-12-24 | 1995-07-28 | Yazaki Corp | Connector structure |
JP3036419B2 (en) * | 1995-11-17 | 2000-04-24 | 住友電装株式会社 | Half mating detection connector |
JP3285305B2 (en) * | 1995-12-22 | 2002-05-27 | 矢崎総業株式会社 | Half mating prevention connector |
JP3180016B2 (en) * | 1996-02-08 | 2001-06-25 | 矢崎総業株式会社 | Half mating prevention connector |
JP3420918B2 (en) * | 1997-09-17 | 2003-06-30 | 矢崎総業株式会社 | Half mating prevention connector |
JPH11224728A (en) * | 1998-02-04 | 1999-08-17 | Yazaki Corp | Half-fitting preventive connector |
JP3047175B2 (en) * | 1998-03-18 | 2000-05-29 | 矢崎総業株式会社 | Connector mating structure |
JP3741348B2 (en) | 1999-06-11 | 2006-02-01 | 矢崎総業株式会社 | Half-mating prevention connector |
JP3817089B2 (en) | 1999-06-11 | 2006-08-30 | 矢崎総業株式会社 | Half-mating prevention connector |
DE10012324B4 (en) * | 2000-03-14 | 2005-08-11 | Fci Automotive Deutschland Gmbh | connector system |
JP3593959B2 (en) * | 2000-08-10 | 2004-11-24 | 住友電装株式会社 | connector |
JP3806926B2 (en) * | 2002-03-01 | 2006-08-09 | 住友電装株式会社 | connector |
JP3775345B2 (en) | 2002-05-28 | 2006-05-17 | 住友電装株式会社 | connector |
SG143088A1 (en) | 2006-11-22 | 2008-06-27 | Mea Technologies Pte Ltd | Electrical connector |
JP2012089299A (en) * | 2010-10-18 | 2012-05-10 | Sumitomo Wiring Syst Ltd | Waterproof connector |
CN102957044B (en) | 2012-10-29 | 2015-04-08 | 中航光电科技股份有限公司 | Ejection mechanism and electric connector utilizing same |
US9270055B2 (en) * | 2014-04-10 | 2016-02-23 | Delphi Technologies, Inc. | Connector with vibratory connection feedback |
JP2017010296A (en) | 2015-06-23 | 2017-01-12 | 日東電工株式会社 | Position sensor |
JP6783077B2 (en) * | 2016-06-15 | 2020-11-11 | 矢崎総業株式会社 | connector |
-
2017
- 2017-01-24 JP JP2017010296A patent/JP6649292B2/en active Active
- 2017-11-30 US US16/472,652 patent/US10784619B2/en active Active
- 2017-11-30 WO PCT/JP2017/043212 patent/WO2018139051A1/en unknown
- 2017-11-30 CN CN201780078864.7A patent/CN110088991B/en not_active Expired - Fee Related
- 2017-11-30 BR BR112019012983A patent/BR112019012983A2/en not_active Application Discontinuation
- 2017-11-30 EP EP17893980.7A patent/EP3576230B1/en active Active
Non-Patent Citations (1)
Title |
---|
None * |
Also Published As
Publication number | Publication date |
---|---|
WO2018139051A1 (en) | 2018-08-02 |
JP6649292B2 (en) | 2020-02-19 |
JP2018120704A (en) | 2018-08-02 |
EP3576230A1 (en) | 2019-12-04 |
CN110088991A (en) | 2019-08-02 |
US20190363486A1 (en) | 2019-11-28 |
CN110088991B (en) | 2020-10-27 |
US10784619B2 (en) | 2020-09-22 |
EP3576230A4 (en) | 2020-01-08 |
BR112019012983A2 (en) | 2019-12-31 |
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